K57 Pro 1.96 Inch Bluetooth Call Music Weather Display Waterproof Smart Watch, Color: Black

1. Supported systems: Android 4.4 and above, IOS 8.0 and above2. Supported languages: English, Chinese, Japanese, German, French, Spanish, Arabic, Russian, Ukrainian, Portuguese3. Functions: time display, step counting, calories, distance, heart rate, blood pressure, blood oxygen, on/off display, stopwatch, multi-sport mode, incoming call notification, information reminder, multi-language push, alarm clock reminder, remote photography, sedentary reminder , sleep monitoring (sleep time, sleep quality)4. Main control chip: Realtek 8763EWE5. Memory: Flash 128MB6. Screen: 1.96-inch IPS square screen with full viewing angle7. Screen resolution: 320 x 3868. Bluetooth version: 5.09. Heart rate: 360510. Speaker: 091611. Battery capacity: 400 mAh12. Standby time: about 30 days13. Working time: about 5-10 days14. Motor: built-in, vibration reminder